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#ifndef __PERF_MAP_H
#define __PERF_MAP_H
#include <linux/compiler.h>
#include <linux/list.h>
#include <linux/rbtree.h>
#include <stdio.h>
#include <stdbool.h>
#include <linux/types.h>
enum map_type {
MAP__FUNCTION = 0,
MAP__VARIABLE,
};
#define MAP__NR_TYPES (MAP__VARIABLE + 1)
extern const char *map_type__name[MAP__NR_TYPES];
struct dso;
struct ip_callchain;
struct ref_reloc_sym;
struct map_groups;
struct machine;
struct perf_evsel;
struct map {
union {
struct rb_node rb_node;
struct list_head node;
};
u64 start;
u64 end;
u8 /* enum map_type */ type;
bool referenced;
bool erange_warned;
u32 priv;
u32 prot;
u32 flags;
u64 pgoff;
u64 reloc;
u32 maj, min; /* only valid for MMAP2 record */
u64 ino; /* only valid for MMAP2 record */
u64 ino_generation;/* only valid for MMAP2 record */
/* ip -> dso rip */
u64 (*map_ip)(struct map *, u64);
/* dso rip -> ip */
u64 (*unmap_ip)(struct map *, u64);
struct dso *dso;
struct map_groups *groups;
};
struct kmap {
struct ref_reloc_sym *ref_reloc_sym;
struct map_groups *kmaps;
};
struct map_groups {
struct rb_root maps[MAP__NR_TYPES];
struct list_head removed_maps[MAP__NR_TYPES];
struct machine *machine;
int refcnt;
};
struct map_groups *map_groups__new(struct machine *machine);
void map_groups__delete(struct map_groups *mg);
bool map_groups__empty(struct map_groups *mg);
static inline struct map_groups *map_groups__get(struct map_groups *mg)
{
++mg->refcnt;
return mg;
}
void map_groups__put(struct map_groups *mg);
struct kmap *map__kmap(struct map *map);
struct map_groups *map__kmaps(struct map *map);
static inline u64 map__map_ip(struct map *map, u64 ip)
{
return ip - map->start + map->pgoff;
}
static inline u64 map__unmap_ip(struct map *map, u64 ip)
{
return ip + map->start - map->pgoff;
}
static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
{
return ip;
}
/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
u64 map__rip_2objdump(struct map *map, u64 rip);
/* objdump address -> memory address */
u64 map__objdump_2mem(struct map *map, u64 ip);
struct symbol;
struct thread;
/* map__for_each_symbol - iterate over the symbols in the given map
*
* @map: the 'struct map *' in which symbols itereated
* @pos: the 'struct symbol *' to use as a loop cursor
* @n: the 'struct rb_node *' to use as a temporary storage
* Note: caller must ensure map->dso is not NULL (map is loaded).
*/
#define map__for_each_symbol(map, pos, n) \
dso__for_each_symbol(map->dso, pos, n, map->type)
/* map__for_each_symbol_with_name - iterate over the symbols in the given map
* that have the given name
*
* @map: the 'struct map *' in which symbols itereated
* @sym_name: the symbol name
* @pos: the 'struct symbol *' to use as a loop cursor
* @filter: to use when loading the DSO
*/
#define __map__for_each_symbol_by_name(map, sym_name, pos, filter) \
for (pos = map__find_symbol_by_name(map, sym_name, filter); \
pos && strcmp(pos->name, sym_name) == 0; \
pos = symbol__next_by_name(pos))
#define map__for_each_symbol_by_name(map, sym_name, pos) \
__map__for_each_symbol_by_name(map, sym_name, (pos), NULL)
typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
void map__init(struct map *map, enum map_type type,
u64 start, u64 end, u64 pgoff, struct dso *dso);
struct map *map__new(struct machine *machine, u64 start, u64 len,
u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
u64 ino_gen, u32 prot, u32 flags,
char *filename, enum map_type type, struct thread *thread);
struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
void map__delete(struct map *map);
struct map *map__clone(struct map *map);
int map__overlap(struct map *l, struct map *r);
size_t map__fprintf(struct map *map, FILE *fp);
size_t map__fprintf_dsoname(struct map *map, FILE *fp);
int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
FILE *fp);
int map__load(struct map *map, symbol_filter_t filter);
struct symbol *map__find_symbol(struct map *map,
u64 addr, symbol_filter_t filter);
struct symbol *map__find_symbol_by_name(struct map *map, const char *name,
symbol_filter_t filter);
void map__fixup_start(struct map *map);
void map__fixup_end(struct map *map);
void map__reloc_vmlinux(struct map *map);
size_t __map_groups__fprintf_maps(struct map_groups *mg, enum map_type type,
FILE *fp);
void maps__insert(struct rb_root *maps, struct map *map);
void maps__remove(struct rb_root *maps, struct map *map);
struct map *maps__find(struct rb_root *maps, u64 addr);
struct map *maps__first(struct rb_root *maps);
struct map *maps__next(struct map *map);
void map_groups__init(struct map_groups *mg, struct machine *machine);
void map_groups__exit(struct map_groups *mg);
int map_groups__clone(struct map_groups *mg,
struct map_groups *parent, enum map_type type);
size_t map_groups__fprintf(struct map_groups *mg, FILE *fp);
int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
u64 addr);
static inline void map_groups__insert(struct map_groups *mg, struct map *map)
{
maps__insert(&mg->maps[map->type], map);
map->groups = mg;
}
static inline void map_groups__remove(struct map_groups *mg, struct map *map)
{
maps__remove(&mg->maps[map->type], map);
}
static inline struct map *map_groups__find(struct map_groups *mg,
enum map_type type, u64 addr)
{
return maps__find(&mg->maps[type], addr);
}
static inline struct map *map_groups__first(struct map_groups *mg,
enum map_type type)
{
return maps__first(&mg->maps[type]);
}
static inline struct map *map_groups__next(struct map *map)
{
return maps__next(map);
}
struct symbol *map_groups__find_symbol(struct map_groups *mg,
enum map_type type, u64 addr,
struct map **mapp,
symbol_filter_t filter);
struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
enum map_type type,
const char *name,
struct map **mapp,
symbol_filter_t filter);
struct addr_map_symbol;
int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter);
static inline
struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
const char *name, struct map **mapp,
symbol_filter_t filter)
{
return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter);
}
int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
FILE *fp);
struct map *map_groups__find_by_name(struct map_groups *mg,
enum map_type type, const char *name);
void map_groups__flush(struct map_groups *mg);
#endif /* __PERF_MAP_H */
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